Old Tech Helps Saturn Turn a New PageYou don't need be a climatologist or have your nose buried in
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| Saturn's on the road, making a greener SUV. (Photo: Justin Couture, Canadian Auto Press) |
a newspaper to know that Mother Nature's been having hot flashes. It isn't because she's getting menopausal, she's just starting to heat up. Take this past winter for instance, where, on several days it was warm enough to walk around wearing a tee-shirt and shorts in my Toronto neighbourhood. Spring was pretty fair too; I ended up putting the winter apparel in the closet long before I would have previously, according to my calendar. Summer was hot and dry, and now that we've gone full cycle once again I should be getting ready to don a toque and parka. But I'm not.
And it's not just me that's been feeling the heat, as environmental agencies and governments have been lighting a flame under major polluters, including the car companies, to produce fewer toxins, and in this case more fuel efficient vehicles - in particular thriftier SUVs - that also pollute less. Some parts of the world, such as the UK, are busy finding ways of banning sport utilities completely. And it's not as if full-size SUV owners (even here at home) haven't been feeling the pressure, with the reality that a buck-a-litre-and-then-some fuel prices are here to stay. And, of course, the greenies have been keeping busy by protesting, chaining themselves to assembly lines, and, the more daring ones (lacking common sense), lighting SUVs ablaze.
There's
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| Not the most advanced hybrid system on the market, but indeed, the badge doesn't lie. (Photo: Justin Couture, Canadian Auto Press) |
no question that one of North America's favourite forms of transportation is under
fire(sorry but I couldn't help the pun), but General Motors, arguably the king of the SUV, wants to change this, and they're starting with the revitalized Saturn brand. Its curve ball to the world of high consumption is the new VUE Green Line, the world's first truly affordable hybrid sport utility that's as easy on gas as it's initially easy on the wallet, plus easy on Mother Nature and good for a tax rebate or two to boot.
The VUE Green Line is Saturn's first hybrid, and while it is parent GM's
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| Affordability is one of the key principles behind the VUE Green Line. (Photo: Justin Couture, Canadian Auto Press) |
first hybrid sport utility vehicle, it isn't its first production hybrid. The General's viewpoint on hybrids has always been from a wider access point than Toyota or Honda. Instead of targeting a select few through niche products, it went after the fleet market with the Chevy Silverado/GMC Sierra Hybrid during late 2003. The mild hybrid full-size truck is a concept that works better than you might imagine: most fleet trucks spend a great deal of time acting on the two most extremes of any pickup - either as true workhorses or lazily idling about. A hybrid drivetrain is perfectly suited to this life, providing the necessary grunt from the electrical motor when pulling (although not as capable as a bullish diesel) while the idle-stop feature prevents excessive fuel consumption. GM's logical theory was also applied to the public transportation sector, with its lineup of Hybrid busses that launched in 2004.
But wait, there's more: as was announced at this year's North
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| Aside from the ION, this is the last remaining polymer-paneled Saturn. (Photo: Justin Couture, Canadian Auto Press) |
American International Auto Show in Detroit, GM is working on developing a two-pronged hybrid technique in delivering the goodness of partial zero emissions vehicles to everyday folk. One of their big reveals at their home show was the Tahoe Hybrid with the 'Two-Mode' hybrid system, a hybrid system developed in conjunction with such odd bedfellows as DaimlerChrysler and BMW. This is GM's first full hybrid, non-commercial production vehicle, and will be capable of running on electrical power alone, something that the pickup hybrids couldn't do. The other big reveal at the show was the VUE Green Line, another mild hybrid like the Silverado.
If revolution is what you seek in hybrids, then perhaps it's best to
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| From the driver's seat, there are very few differences (regular VUE V6 shown). (Photo: GM) |
direct your attention towards the Tahoe Two-Mode, or something daringly cutting edge, like Lexus' forthcoming LS 600h, because there is simply nothing monumentally different about the Green Line's system. In the hybrid world, the type of technology that it uses is about as simple as it gets, and it's akin to the first hybrids from Honda. This also means that the VUE won't be breaking any new records for environmental friendliness. But that's not the point of the Green Line. Rather, the innovation that Saturn's bringing to the table is probably more signifcant. It's putting fuel friendly, low emissions technology into more peoples' driveways, and it's doing it the good 'ol fashioned way, by making it cost effective to the working class.
The Vue Green Line starts out with a simple but modern gasoline
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| The new EcoTec and four-speed automatic powertrain combo. It'll also be used on the Aura. (Photo: GM) |
engine, the 2.4-litre EcoTec four-cylinder with variable valve timing. It's the first time that this engine has been employed in the VUE. On its own, this is a significant upgrade in power when compared to the standard VUE's 143-horsepower 2.2-litre four, although the combination of this gasoline engine and the electric motor - which I'll get into more detail later - creates a sum total of 170 horsepower and 164 lb-ft of torque. Like every other regular car gone hybrid (Civic, Camry, Accord, Escape, Highlander, etc), the VUE Green Line will not only be more fuel efficient than its gasoline-only counterpart, shaving about 20-percent off the top of what a regular four-cylinder VUE would consume on average, but it'll also beat the gasoline-only inline-four to 100 km/h by about a second.
The generator-motor is actually visible in the engine bay, unlike other
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| That gauge on the right is like a heartbeat monitor for the hybrid's electrical system. (Photo: Justin Couture, Canadian Auto Press) |
mild hybrids, that have their coils stuffed in between the engine and gearbox. If you pop the hood and peer around the big plastic cover, you can actually see the 14.5 kW motor/generator which delivers up to 115 lb-ft of torque. Another oddity for the Green Line is that its gearbox is a conventional four-speed automatic of the Hydra-Matic variety, although it's been modified for this particular application. Perhaps it's just me, but the automatic hybrid combination drips with irony; Saturn canned the CVT gearbox on the VUE three years after it was introduced, which is odd, as almost every automatic hybrid on the market aside from the Honda Accord Hybrid has a CVT (continuously variable transmission).
Customers won't quibble about this though, but rather will
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| Lots of room inside as batteries take up space under the rear seat cushion. (Photo: GM) |
undoubtedly appreciate that the VUE hasn't lost a single litre of cargo volume to the hybrid conversion. By keeping the start and stop functions of the motor-generator juiced by the car's regular battery in the engine bay, the hybrid's power pack could be downsized to fit within the sub-floor under the cargo bay. This also bodes well for versatility, of which the VUE has plenty. The Green Line still has 60/40 split-folding seats and a front passenger's seat that folds flat, lending to some pretty voluminous hauling capabilities. Five-up, from cargo floor to roof, there's 872 L (30.8 cu-ft) worth of space available, and if you don't need the back seats they fold down to yield 1,812 L (64.0 cu-ft) from bottom to roof top.
To me, the Vue has always been a friendly vehicle. It's not the least
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| That's one of those by-fangled things... you know, the ones that run on gasoline and electricity. What are they called...? (Photo: Justin Couture, Canadian Auto Press) |
bit aggressive looking, and if the entire polymer plastic paneled body of my tester wasn't covered in a full-size stick-on tattoo, then the VUE Green Line would be a very discreet machine. Chrome-plated wheels and a skidplate persuade the naked eye to believe that this isn't really a hybrid, because the only real details which betray its green secret are the wee Hybrid badges stuck around the exterior. I think this approach will work just fine for people who just want to get on with their green motoring lives, rather than to be singled out at fuel pumps by intrigued passersby.
Much the same story goes for the interior. Since this is the first
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| Eco light shines when your instantaneous mileage is better than your average mileage... in other words, when you're doing good. (Photo: Justin Couture, Canadian Auto Press) |
in-depth look of a post-facelifted VUE we've done, there's a bit of stuff to talk about, such as the redesigned centre console and the various bolt-ons that GM added to make the Vue's cabin a nicer place to spend time. The new GM-corporate steering wheel can be found here; its leather rim is pleasantly tactile, while the stereo and climate control systems are easier to use, plus they look modern. As for the particulars of the Green Line, there are new chrome-ringed instruments that show the output/recharge status of the hybrid system, a new tachometer with idle-stop indicator, and a green button that forces the car into 'eco' mode, minimizing the impact of accessories such as the air conditioner. One thing that hybrid enthusiasts might miss is a visual display on the inner workings of the powertrain system, such as the in-dash one on the Toyota Highlander Hybrid.
When driving the Green Line it's very difficult to detect that there's
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| Not a speedy VUE, just a slow shutter speed. (Photo: Justin Couture, Canadian Auto Press) |
nothing more going on than what normally happens behind the wheel of a VUE. You can't hear the electric motors working unless you turn off the stereo, turn down the fan and listen extra hard. Unfortunately, though, there isn't really all that much to report on when at speed. The steering is typically over-assisted, like most compact SUVs, and lacks feel due to electrical assist, but it makes the VUE a treat to navigate in tight spots and through congested traffic. Acceleration doesn't feel anywhere as rapid as GM suggests, the long-as-a-physics-lecture-on-a-warm-June-day gearing fights the engine's willingness to move forward. But it's not like you'd want to go too fast anyway, as the package is sealed off by a ride that's soft and squishy, just like the brake pedal.
I didn't drive the Green Line long enough to generate any valid
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| Reworked console is easier to navigate. Window switches are still mounted in an odd position on centre console. (Photo: Justin Couture, Canadian Auto Press) |
fuel consumption numbers, but given that this is a four-cylinder front-wheel drive SUV, more of a tall wagon actually, aided by hybrid components, I don't have any reservations with it matching GM's claims.
In that respect, the VUE Green Line succeeds. This is probably the only hybrid vehicle that it would be conceivable to purchase on the basis of saving at the pumps. At 8.8 L/100 km in the city, it's just about as efficient as a compact car, while its 6.7 L/100 km highway rating makes it the most efficient sport utility vehicle, period. End of sentence. And with a starting price of $29,060, the VUE Green Line is very, very reasonable, checking in at a mere $570 more than the front-wheel drive V6 model. A VUE Green Line stuffed to the gills with every single option available will ring in at $33,335, which is still cheaper than any other hybrid SUV on the market. If there's any machine that can convince people to switch over to hybrids, this probably has the best chance.
Saturn's also about to add another green ring to its product lineup with the Aura Green Line, slated to arrive sometime in 2007. It, like the VUE will be a mild hybrid to help lure those with shallower pockets into the realm of hybrid ownership. Unlike many of the vehicles it competes with, its mild hybrid, four-cylinder arrangement will help it undercut rivals by a significant amount. However, if there's any machine that can convince people to switch over from regular cars to hybrids, my money's on the VUE Green Line.
Specifications (VUE Green Line):- Price Range (VUE Green Line): $29,060 - $33,335
- Price as Tested (MSRP): $29,060
- Body Type: 5-door SUV
- Layout: front engine, FWD
- Gasoline Engine: 170 hp, 162 lb-ft of torque, 2.4L, 16-valve DOHC I-4
- Electric Motor: 115 lb-ft of torque, 14.5 kW DC Brushless
- Transmission: 4-spd auto
- Brakes (front/rear): disc/drum, ABS
- Dimensions (L/W/H/WB): 4,605 / 1,818 / 1,659 / 2,707 mm (181.3 / 71.5 / 65.3 / 106.6 in)
- Curb Weight: 1,576 kg (3,473 lbs)
- Tires: 215/70R16
- Cargo Volume (up / down; to roof): 872 / 1,812 L (30.8 / 64.0 cu-ft)
- Fuel Economy (city/hwy): 8.8 / 6.7 L/100 km
- Warranty (mo/km): 36/60,000 comprehensive; 60/160,000 powertrain
- Competitors: Ford Escape Hybrid, Toyota Highlander Hybrid
- Website: www.gmcanada.com